Some Synergistic Effects of Antioxidants in Natural Rubber

被引：0
|
作者：
D. F. Parra
J. do Rosário Matos
机构：
[1] Universidade de São Paulo,Departamento de Química Fundamental, Instituto de Química
来源：
Journal of Thermal Analysis and Calorimetry | 2002年 / 67卷
关键词：
amine stabilizers; natural rubber; oxidative induction time;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Some synergistic effects of antioxidants in natural rubber were investigated considering results obtained by differencial scanning calorimetry (DSC). Rubber formulations were obtained with mixtures of diaminic(DPPD, IPPD, HPPD) and monoaminic (ADPA, PBN) stabilizers and evaluated. The samples containing the mixture diamine/ADPA stabilizers showed synergistic effects while, for those containing diamine/PBN, no effect was observed. Additionally, the diffusion constants determined by use of vulcanized rubber disks confirmed the molar mass dependence of the stabilizer.
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页码：287 / 294
页数：7
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